CVE-2026-21790 in HCL Traveler
Summary
HCL Traveler is susceptible to a weak default HTTP header validation vulnerability, which could allow an attacker to bypass additional authentication checks.
Responsible
HCL
Reservation
01/05/2026
Disclosure
03/24/2026
Entries
VulDB provides additional information and datapoints for this CVE:
| ID | Vulnerability | CWE | Exp | Cou | CVE |
|---|---|---|---|---|---|
| 352870 | HCL Traveler HTTP Header Validation origin validation | 346 | Not defined | Official fix | CVE-2026-21790 |